Lamp



Dec. 18,1923. 1,47,236

' W, A. LUBY I LAMP Filed July 14. 1922 2 Sheets-Sheet 1 IN VENTOR Dec.18,1923;

. W. A. LUBY LAMP File uly 14; 1922 2 S heet's-Sheet 2 ay I misuse s,Lemz', es

Applieeiion fileri July is, 323532.

To all 4111200., in 60%607'72 life it known that WIMJAM A. Lees, ecitizen of the United States, resicling at Kansas City, in the county ofJackson and of Missouri, have invented certein new and usefulimprovements in Lamps; eni I do declare the following to be a full,cieei, enci exec-s description of the inveniezl such es wiii enableothers skilled in the so "which it epperteins to make and use the samereference "being 113161 to the accom peeying ellswings and to thefigures of reference marked thereon, which form e pert oi thisspecification.

is ieveniem relates to lamps and per Early io lice- Eights used on motorvexes, six inveniiien being also applicable as see fi lie primer objec'eof the invention is to Provide a lamp in which the beam of lightscreened eii so that the light rays will neibe projected into the eyesof the occupants oi: e vehicle coming toward the vehicle en whiciithelamp 017 lamps are in use,

ze full value of the light source so the light beem eiirown upon thegroimcl n .se lose whereby the upper por- #31011 f i ltseem will bescreened off by e tiieplre'm sctitle's ehe light rays wili be cecl theline of vision of the oi of an approaching vehicle.

'i carrying eat my invention 1 em loy ,eubular iemp casing, at one enclof w lch is s seiiecior. Within the casing is a lens end between elsereflector encl the iens is a diaphragm is cut out ihe rays of light e6;the top of the lens or at the side as desirecl The peeuiiariy 'zcovelconstmction of my invention es Weil the edveneeges scene ing therefromwill be specifically described hereinafter reference being bad to sheaccompsi mg drawings, in which Fig. i is a, perspective View of myinvention, parts being broken away to better illuswebs other parts.

2 is e vertical, longitudinal, sectionei ehicugli the lamp, the ends ofthe Te fiectotc the vlens holder being shown in The primer objieci; ofmy invention is to a. i l

through A slightly modified form of ismp the lamp cesii'ig' at he lensend being shown in elevation.

Fig. 5 is a cross secsional. View on ihe line 5---5 cf Fig, 4, emi

Fig. 6 ise from end View of the modified form cf ism shown in Fig. 4.

The lamp casing is shown as consisting 0itW-e telescoping tubularmembers 1 sed 2. At the end of the member i. is a parabolic reflector 3,in which is a light"- source illusiseteci an incandescent electric ieznpThe parabolic reflector can be secured, to the emi of the tube l, by anyseisebie means, es fey example, by :1 band 5,

At the opposiie end of the casing and we 1 have shown a simpe form ofeffecting the adjustment sndi by reference to Fi s. 1 end 2 ii; will beobserved she;- the membes 1 carries a bracket 7, in which is e Wormshaft 8 centi'oliecl by she knurled button 9. The-Worm engages the teethof a rack 10, which projiects'iiimugh the arms 11 and. 12 of the bracket7, the seek having engagement with the tubular member 2 et one end, asimliceteii at Therefore, When She imtson 9 is tin-Heel the shaft 8 Wlilbe earned so that the worm will mcve the reek leer i0 seek anti iogrtliimpart e simiiar movemens to the member 2 to bring the lens to theproper position. The connection 13 extends through an elongated sioi: Min the memiier 1 so that there will be sufficient play so effec'e theadjustment. as will be Weil 'onaiersicoii by reference to 1 emi 2 i Theparabolic refiectei: 3 would ordiniiriiy i'eilecs the rays 0.? lightfrom the light source through the lens 6 is the form of e beem ecensiiiersble distance frem the lamp. The intensity of all such fight,however, is disconcerting to il'lG-OCCUPSLIliZS of s vehicle irevelingizewezwi the lamp. in crzier to eliminate shis objection 1 provide ediaphiag'm leesween tie lens and the reflector, This oiiepiiregiii inconnection with the ens so ik'lfi'iififis the emerging; beam icsupirfe-cily This; messes ii; i fillies I w..- s

e e seed resuming ee Mil 7 "an m is mu eum; ail

ing their straight edges at right angles $0 each other,adjustablypositioned within the casing near the meuth of the reflect/erand in the focal plane of the lens so as to cover the lower and side porsions of the mouth of the reflector, the rear side of the diaphr havinga reflective surface so 'afihet the mger ertien oi the light reflectedback to the ie we? will on reflection chemfrom pass the diaphragm andgo, through the lens, the innersurface of fine easing being light absorbing.

In testimony whereof E-efix my si nature.

mum A firm.

